Stackable photo file



FIG. 1 is a top front perspective view of a stackable photo file, the broken line showing being for illustrative purposes only and forming no part of the claimed design;

FIG. 2 is a front view in elevation of the stackable photo file illustrated in FIG. 1;

FIG. 3 is a right side view in elevation of the stackable photo file illustrated in FIG. 1, the left side being identical thereto;

FIG. 4 is a rear view in elevation of the stackable photo file illustrated in FIG. 1;

FIG. 5 is a top plan view of the stackable photo file; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a stackable photo file, as shown and described. 